Chamber type electric resistance furnace
Technical field
The present invention relates to a kind of resistance furnace, particularly relate to a kind of chamber type electric resistance furnace.
Background technology
In the use procedure of chamber type electric resistance furnace, it is desirable to the body of heater of chamber type electric resistance furnace should have good heat insulation and preservation effect, to avoid the heat loss of chamber type electric resistance furnace and to cause resource not make full use of, affect the raising of productivity effect.Meanwhile, for making raising process velocity, it should under the premise ensureing production safety, it is simple to the burner hearth of processing work turnover chamber type electric resistance furnace.The problems referred to above are the problems that should solve in the design and production process of chamber type electric resistance furnace.
Summary of the invention
It is an object of the invention to provide a kind of chamber type electric resistance furnace to solve in the use procedure of chamber type electric resistance furnace, the body of heater requiring chamber type electric resistance furnace should have good heat insulation and preservation effect, to avoid the heat loss of chamber type electric resistance furnace and to cause resource not make full use of, the problem affecting the raising of productivity effect.
The technical solution of the present invention is:
A kind of chamber type electric resistance furnace, including grate, body of heater and heating element heater, described body of heater is fixed on grate, and the inside of described body of heater is provided with burner hearth, described body of heater includes furnace shell, heat-insulation layer and the flame retardant coating that ecto-entad sets gradually, and described flame retardant coating adopts density less than 1100kg/m3Refractory brick, described heat-insulation layer adopts aluminosilicate refractory fiber, described furnace shell is filled with frog stone powder with insulation interlayer, described heating element heater adopts corrugated resistor, described resistor is evenly arranged on the flame retardant coating of described body of heater, the both sides of described body of heater are equipped with fire door, the outer layer that described fire door all includes the internal layer be made up of refractory fiber cotton and steel plate is made.
Further improvement is that: described fire door is laterally opened fire door.
Further improvement is that: the sealing part of described fire door is provided with " convex " type edge sealing that refractory fiber cotton is made, and described body of heater is provided with the groove suitable with described edge sealing.
Further improvement is that: described flame retardant coating adopts density 700-1100kg/m3Refractory brick.
Further improvement is that: described body of heater is provided with thermocouple, described burner hearth is inserted in the end of described thermocouple.
Further improvement is that: described thermocouple is the thermocouple of nickel chromium triangle-nisiloy.
One chamber type electric resistance furnace of the present invention, the flame retardant coating made by the light material that employing amount of stored heat is few and heat-insulation layer, and it is filled with frog stone powder at furnace shell with insulation interlayer, keep the fire box temperature of chamber type electric resistance furnace, reduce thermal loss, improve the production efficiency of chamber type electric resistance furnace.Furnace temperature in the burner hearth of this kind of chamber type electric resistance furnace uniformly and high insulating effect, energy-conservation reaches more than 20%.This kind of chamber type electric resistance furnace, useful load is big, is respectively provided with fire door in the both sides of body of heater, in order to is loaded by the workpiece needing processing and takes out the burner hearth of chamber type electric resistance furnace, under the premise being effectively ensured production safety, it is possible to speed operations speed.The sealing part of fire door is provided with " convex " type edge sealing that refractory fiber cotton is made, and described body of heater is provided with the groove suitable with described edge sealing, thus when fire door is closed, close enter on body of heater for groove in, strengthen the sealing between fire door and body of heater, strengthen heat insulation and preservation effect, reduce heat loss.Being provided with thermocouple at body of heater, the end of thermocouple is inserted in burner hearth, uses nickel chromium-nickel silicon thermocouple directly to measure the operating temperature in the burner hearth of chamber type electric resistance furnace.
The invention has the beneficial effects as follows: one chamber type electric resistance furnace of the present invention, useful load is big, productivity ratio is high, is particularly well-suited to the heat treatment heating of parts little, medium-sized, furnace temperature uniformly, high insulating effect, energy-conservation reach more than 20%, and pollution-free, environmental benefit is good.This kind of chamber type electric resistance furnace, reasonable in design, the sealing part of fire door is provided with " convex " type edge sealing that refractory fiber cotton is made, described body of heater is provided with the groove suitable with described edge sealing, thus when fire door is closed, close enter on body of heater for groove in, strengthen the sealing between fire door and body of heater, strengthen heat insulation and preservation effect, reduce heat loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Wherein: 1-grate, 2-heating element heater, 3-furnace shell, 4-heat-insulation layer, 5-flame retardant coating, 6-fire door, 7-thermocouple.
Detailed description of the invention
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the present embodiment provides a kind of chamber type electric resistance furnace, including grate 1, body of heater and heating element heater 2, described body of heater is fixed on grate 1, the inside of described body of heater is provided with burner hearth, described body of heater includes furnace shell 3, heat-insulation layer 4 and the flame retardant coating 5 that ecto-entad sets gradually, and described flame retardant coating 5 adopts density less than 1100kg/m3, it is preferable that 900kg/m3Refractory brick, described heat-insulation layer 4 adopts aluminosilicate refractory fiber, it is filled with frog stone powder between described furnace shell 3 and heat-insulation layer 4, described heating element heater 2 adopts corrugated resistor, described resistor is evenly arranged on the flame retardant coating 5 of described body of heater, the both sides of described body of heater are equipped with fire door 6, the outer layer that described fire door 6 all includes the internal layer be made up of refractory fiber cotton and steel plate is made.Described fire door 6 is laterally opened fire door 6.The sealing part of described fire door 6 is provided with " convex " type edge sealing that refractory fiber cotton is made, and described body of heater is provided with the groove suitable with described edge sealing.Described body of heater is provided with thermocouple 7, and described burner hearth is inserted in the end of described thermocouple 7.Described thermocouple 7 is the thermocouple of nickel chromium triangle-nisiloy.
The present embodiment one chamber type electric resistance furnace, the flame retardant coating 5 made by the light material that employing amount of stored heat is few and heat-insulation layer 4, and between furnace shell 3 and heat-insulation layer 4, it is filled with frog stone powder, keep the fire box temperature of chamber type electric resistance furnace, reduce thermal loss, improve the production efficiency of chamber type electric resistance furnace.Furnace temperature in the burner hearth of this kind of chamber type electric resistance furnace uniformly and high insulating effect, energy-conservation reaches more than 20%.This kind of chamber type electric resistance furnace, useful load is big, is respectively provided with fire door 6 in the both sides of body of heater, in order to is loaded by the workpiece needing processing and takes out the burner hearth of chamber type electric resistance furnace, under the premise being effectively ensured production safety, it is possible to speed operations speed.The sealing part of fire door 6 is provided with " convex " type edge sealing that refractory fiber cotton is made, and described body of heater is provided with the groove suitable with described edge sealing, thus when fire door 6 is closed, close enter on body of heater for groove in, strengthen the sealing between fire door 6 and body of heater, strengthen heat insulation and preservation effect, reduce heat loss.Being provided with thermocouple 7 at body of heater, the end of thermocouple 7 is inserted in burner hearth, uses nickel chromium-nickel silicon thermocouple directly to measure the operating temperature in the burner hearth of chamber type electric resistance furnace.
The present embodiment provides the benefit that: the present embodiment one chamber type electric resistance furnace, and useful load is big, productivity ratio is high, is particularly well-suited to the heat treatment heating of parts little, medium-sized, furnace temperature uniformly, high insulating effect, energy-conservation reach more than 20%, and pollution-free, environmental benefit is good.This kind of chamber type electric resistance furnace, reasonable in design, the sealing part of fire door is provided with " convex " type edge sealing that refractory fiber cotton is made, described body of heater is provided with the groove suitable with described edge sealing, thus when fire door is closed, close enter on body of heater for groove in, strengthen the sealing between fire door and body of heater, strengthen heat insulation and preservation effect, reduce heat loss.